Diagnostic Trouble Code
P0153
Oxygen Sensor Circuit Slow Response B2S1
Technical Description P0153
Oxygen Sensor Circuit Slow Response (Bank2, Sensor1)
What Does This Mean P0153?
This diagnostic trouble code (DTC) is a generic powertrain code, which means that it applies to OBD-II equipped vehicles. Although generic, the specific repair steps may vary depending on make/model.
This involves the oxygen sensor upstream the catalytic converter on Bank 2. Sensor #1 is the first sensor downstream from the engine.
This code indicates the engine air fuel ratio is not being adjusted by the oxygen sensor signal or the ECM as expected to do so, or not adjusted as often as expected to do so once the engine is warmed or under normal engine use.
This involves the oxygen sensor upstream the catalytic converter on Bank 2. Sensor #1 is the first sensor downstream from the engine.
This code indicates the engine air fuel ratio is not being adjusted by the oxygen sensor signal or the ECM as expected to do so, or not adjusted as often as expected to do so once the engine is warmed or under normal engine use.
Possible Causes P0153
1
The oxygen sensor is faulty
2
The wiring to the sensor is broken / frayed
3
There is an exhaust leak
Solutions & Repair Steps P0153
Things that may fix the problem include: